Combined pipe cutter and threader



Sept. 20, 1932. J, J; BOUCHARD COMBINED PIPE CUTTER AND THREADER FiledSept. 25, 1929 t .w W m 3 Patented Sept. 20, "1932 UNITED STATES JOHN J.noucnnnn, or BRADFORD. rmmsrnvnnm COMBINED PIPE currna. AND: THBEADERApplication filed September 25 1929. Serial No. 395,129.

This invention relates to the type of tool which is adapted to cuta pipeand thread the end adjacent the cut, thereby obviating the provision andthe use of two separate and independent tools for the performance ofsuch work.

The invention contemplates combining with the usual threading die acutter for severance of a pipe simultaneously with the formation of thethreads, the parts being positioned so that when the threads are fullyformed the pipe is cut in two.

-While the drawing illustrates a preferred embodiment of the invention,it is to be understood that in adapting the means to meet specific needsand requirements, the design may be varied and such other changes in theminor details of the invention claimed, Without departing from thespirit thereof.

For a full understanding of the invention and the merits thereof,reference is to be had to the following description and the drawinghereto attached, in which Figure 1 is a plan view of a stock of wellknown construction provided with threading dies fitted with pipe cuttersembodying the invention.

Figure 2 is a longitudinal sectional view of the threading dies andapplied pipe cutters in operative positions when simultaneously cuttingand threading a pipe.

Figure 3 is a detail perspective view of a threading die and pipe cutterthe parts i being separated.

Figure 4 is a detail sectional view on the line l l of Figure 3.

Figure!) is a detail sectional view on th line 55 of Figure 3.

Corresponding and like parts are referred to in the followingdescription and designated in the several views of the drawing by likereference characters.

The numeral '1 denotes a stock of well kn own construction adapted toreceive a pair of threading dies 2. The dies 2 are held in place bymeans of screws 3 and are adjusted by means of screws 40. These partsare of well known construction and arrange ment and are illustrated todemonstrate the application of the invention whichresides in,

the pipe cutters and their relation to thethreading dies 2.

Each of the dies 2 is provided with a pipe cutter whichconsists of aplate 4 and points- 5 and- 6, the point 5 constituting a follower andthe point 6 a cutter. The plated usually consists of tempered tool steeland is attached to a side of the threading die and secured by meansofscrews 7 or other suitable fastening means. The outer face or side ofthe threading die isv recessed adjacent the cutting endto provide a seat8 for reception of the cutter, thereby relieving the screws 7 of thestress incident to pressure exerted upon the cutter when the tool is inoperation. This arrangementalso permits ofthe cutter coming flush withthe outer face or side of the threading die. The cutting point 6 is bev-'eled to. an edge and sloped to provide clearance. The follower point 5isbeveled on opposite sides. The points 5 and 6 are separated to admitof their proper and independent functioning as' will readilybe ap-'preciated; When the cutters 4 are properly applied to the threading diestheir points 5. and 6 are set slightly in advance of the thread,

cutting sections of the die 2, as indicated most; 7

clearly in Figure 2 of the drawing and as a result the pipe 9 operatedupon is completely severed when the threads are fully formed. I

hen it is required to cut and thread a pipe 9 the screws 3 are loosenedand the adjusting screws 40 set to admit of the thread ing dies .Z-beingmoved apart topermit of the tool being slipped upon the pipe to therequired point to be out. The screws 3 are adapted to retain thethreading dies 2 in place and admit of their adjustment by rotating thescrews 40. After the tool has been properly positioned upon the pipe 9the screws 40 are adjusted to advance the thread ing dies and the pipecutters to embed the cutters in the pipe after which the tool isoscillated or moved forward and backward approximately a one half turn.The screws 40 are adjusted at intervals, and between each adjustment thetool is oscillated and this operation is repeated until the pipe iscompletely out at the required point and the pipe adjacent the cut fullythreaded. The

tool is reversely rotated to back it from the pipe and during thisoperation the thread is made smooth and any burrs removed. It will thusbe understood that the pipe is cut and thriaaded at one operation and bya single too v 7 Having thus described the invention, I claim 7 I o o 1.In a pipe cutting and threading tool a threading die having a pipecutter mounted thereon, the cutting edge of the cutter pro jectingbeyond the thread-forming face.

2. In a pipe cutting and'threadingtool a threading die having a pipecutter mounted thereon and comprising acutter and a follower, thecutting edge of the cutter project ing beyond the thread-forming face.

3. A threading die having a portion cut away, and a pipe cutter seatedin the cut away portion, and means for holding the pipe cutter in theseat, the cutting edge of the cutter projecting beyond the thread-, 1

forming face.

' 4. In a pipe cutting and threading tool, a

stock, a threading die carried by said stock,

and a cutter carried by said die with its cut 7 ting edgeprojectingbeyond the thread form- 7 ing face of the die. V v

5. In a pipe cutting and threading tool, a stock, threading diescarriedby said stock and having free ends formed withthread cutting faces, onedie being adjustable relative to the other, and cutters secured againstside faces of said dies with their cutting edges extending beyond thefree ends of the dies.

7 6. In a pipe cuttingand threading tool, a

stock, threading dies carried by said stock and having free ends formedwith thread cutting faces, one die being adjustable.rela-' tive to theother, said 'dies being each reduced in thickness from its free end toform a seat having a shoulder at its inner end, cutting blades fittingupon said seats with their inner ends abutting the shoulders and theirouter ends projecting beyond the free ends of the dies and sharpened,and means to removably secure said blades. I

In testimony whereof I aifix my signature.

JOH'N'J. ouonnnn. [us]

